Theory Women's Apparel Size Chart. There's no hesitation for a classic look with these Theory™ dress pants. Belt loops at the waist. Zip fly, hook closure. Side hand pockets. Rear welt pockets. Flared legs. Lined. Body: 94% wool, 3% lycra, 3% polyamide. Lining: 94% polyester, 6% spandex. Dry clean only. Made in the U.S.A. and Imported. Measurements: Waist Measurement: 26 in. Outseam: 42 in. Inseam: 34 in. Front Rise: 8 in. Back Rise: 13 in. Leg Opening: 20 in.